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severákova polívka

asi zelňačka (mainly in czech)

(fork of http://severak.soup.io/)
severak 12.8.2019 13:57:15

When Astronomers Chased a Total Eclipse in a Concorde

In the 1970s, a small group of astronomers used the first prototype of the Concorde to pursue a total eclipse across the Sahara at twice the speed of sound.

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